Page 288 - Sustainable Cities and Communities Design Handbook

262 Sustainable Cities and Communities Design Handbook

FIGURE 14.2 The Vivawest multifamily house after its sustainable refurbishment (InnovationCity
Ruhr, 2017).

uses a year. This was achieved through a combination of energy efficient
technologies, such as LED lighting including presence control and daylight
control systems per office, glass fiber lighting technology using sunlight
without additional energy supply, ceiling heating system (heating and cooling
using activation of concrete ceiling core), district heating pumps and heating
control devices, decentralized ventilation with 90% minimum heat recovery,
energy efficient lifts with 75% energy recovery (Build up EU, 2016) plus
renewable energy installations including a geothermal heat pump, 108 rooftop
solar installations, and a 300W wind plant.
The working projects focused on the refurbishment of nonresidential
buildings, such as the Covestro Zukunftshaus, of which there were about 2000,
including buildings used for commerce, industry, services, recreation, and the
public. Projects include energy-efficient refurbishments, adding batteries to
existing solar systems (redox flow battery storage system), investigation of
coupling industrial areas’ energy systems with residential energy systems, for
example, coordinating and storage of energy between the two, developing a
green gas station powered via solar cells to reduce its energy demand by 50%,
and installing solar power to meet the energy demands of industrial processes.
The Bottrop company metal processing company Technobox installed 70 kW
of solar power, producing 60,000 kWh more than the company’s electricity
demand (InnovationCity Ruhr, 2017).
Mobility-focused projects reduce the amount of CO 2 that is emitted due to
transportation. These included expanding the range and number of electric
vehicle charging stations, increasing the amount of electrical vehicles avail-
able for rental, transportation management studies meant to increase the
efficiency of transportation, efficient distribution of goods and city logistics to
reduce traffic, and a goal to reduce transport-based CO 2 emissions by 30%.